The Hartford Courant reported that the ice contributed to more than 216 car accidents on Sunday, including a fatal crash in New Haven.

The New York Fire Department fielded some 3,700 emergency calls, CNN affiliate WABC reported Monday, and the department took the unusual step of calling in help from neighboring agencies.

As Monday wears on -- there's some good news for the Northeast -- the ice will start melting as temperatures creep upward.

Pennsylvania deaths

A messy mix of ice and rain left bridges, overpasses and interstates very slick Sunday. Two people died in accidents related to black ice in the Philadelphia area, state police said.

In one of the accidents, one person was killed after getting out of a car and being hit by an oncoming vehicle, authorities said. The person got out of the car after crashing into at least 20 vehicles piled up on Interstate 76.

An additional two people were killed in a multicar crash in Delaware County, Pennsylvania, CNN affiliate KYW reported. The three cars rammed into a tractor-trailer and got stuck underneath, it said.

Maryland deaths

At least one person has died in Harford County, Maryland, state police spokesman Greg Shipley said.

There were dozens of crashes Sunday throughout central and northern Maryland. Most occurred in Howard, Baltimore, Harford and Cecil counties.